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  • Committer: Dmitrii Zagorodnov
  • Date: 2009-01-27 21:53:41 UTC
  • mfrom: (25.1.112 eucalyptus-main)
  • Revision ID: dmitrii@cs.ucsb.edu-20090127215341-i0f0v6cmbpljmg02
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tools/gen_kvm_libvirt_xml
 
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#!/usr/bin/env perl
 
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#
 
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# this generates an XML template for libvirt domain specification,
 
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# which is tailored to an instance by the node controller
 
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use diagnostics;
 
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use warnings; 
 
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use sigtrap;
 
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use strict;
 
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use English; # for descriptive predefined var names
 
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use Data::Dumper; # for debugging: print Dumper($var)
 
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use Getopt::Long;
 
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use FindBin;
 
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$OUTPUT_AUTOFLUSH = 1; # no output buffering
 
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our $use_ramdisk = 0;
 
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our $use_ephemeral = 0;
 
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# deal with command-line parameters
 
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GetOptions('ramdisk'        => sub { $use_ramdisk = 1; },
 
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           'ephemeral'      => sub { $use_ephemeral = 1; }
 
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                   ) or exit (1);
 
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print <<EOF;
 
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<domain type='kvm'>
 
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    <name>NAME</name>
 
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    <os>
 
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    <type>hvm</type>
 
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        <kernel>BASEPATH/kernel</kernel>
 
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EOF
 
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if ( $use_ramdisk ) {
 
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    print "        <initrd>BASEPATH/ramdisk</initrd>\n";
 
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}
 
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print <<EOF;
 
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        <cmdline>root=/dev/sda1 console=ttyS0</cmdline>
 
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    </os>
 
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    <features>
 
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        <acpi/>
 
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    </features>
 
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    <memory>MEMORY</memory>
 
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    <vcpu>VCPUS</vcpu>
 
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    <devices>
 
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        <emulator>/usr/bin/kvm</emulator>
 
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        <disk type='file'>
 
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            <source file='BASEPATH/root'/>
 
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            <target dev='sda'/>
 
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        </disk>
 
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EOF
 
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if ( $use_ephemeral ) {
 
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    print <<EOF;
 
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        <disk type='file'>
 
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            <source file='BASEPATH/ephemeral'/>
 
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            <target dev='sda2'/>
 
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        </disk>
 
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EOF
 
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}
 
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print <<EOF;
 
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        <interface type='bridge'>
 
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            <source bridge='BRIDGEDEV'/>
 
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            <mac address='PRIVMACADDR'/>
 
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        </interface>
 
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        <serial type="file">
 
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            <source path='BASEPATH/console.log'/>
 
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            <target port='1'/>
 
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        </serial>
 
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    </devices>
 
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</domain>
 
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EOF